Lindsay Lohan has paid a steep personal price for her addictions and wild child ways – a stalled film career and tarnished reputation – but the financial price could also prove costly to the Mean Girls star, RadarOnline.com has exclusively learned.

Earlier, reports surfaced that Lindsay’s stint in rehab would cost $50,000 – but RadarOnline.com has found the cost will be much steeper.

A source with knowledge of the situation tells us: “The figure is much higher than that. Now that Judge (Elden) Fox has ordered her to stay at Betty Ford until January 3rd, it’s going to end up costing her anywhere from $100,000- $150,000.

“Her medical insurance isn’t covering this stint in rehab. Lindsay’s bill will be most likely $125,000.”